125660173 has 2 divisors, whose sum is σ = 125660174. Its totient is φ = 125660172.

The previous prime is 125660159. The next prime is 125660179. The reversal of 125660173 is 371066521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 44983849 = 8982^2 + 6707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125660173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125660179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62830086 + 62830087.

It is an arithmetic number, because the mean of its divisors is an integer number (62830087).

Almost surely, 2^125660173 is an apocalyptic number.

It is an amenable number.

125660173 is a deficient number, since it is larger than the sum of its proper divisors (1).

125660173 is an equidigital number, since it uses as much as digits as its factorization.

125660173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 125660173 is about 11209.8248425210. The cubic root of 125660173 is about 500.8786855854.

The spelling of 125660173 in words is "one hundred twenty-five million, six hundred sixty thousand, one hundred seventy-three".